Complete Visari Square on any difficulty level

Kill the Blood Meridian heavy in under 1 minute

Defeat the Kraken in the single player Campaign.

Defeat the Goliath in the single player Campaign.

Complete Mission on any difficulty: Approach

Slice up 10 enemies with the Laser.

Complete Mission on any difficulty: Keegan

Collect 50% of the journal intelligence found throughout the game.

Complete Mission on any difficulty: Nurse's Office

Complete Mission on any difficulty: Top

Kill yourself 5 times.

Collect 25% of the journal intelligence found throughout the game.